Ernest n



E. N. HILL.

norm PUMP.

Patented Sept. 2, 1919.

APPLICATION FILED JUNE 4.1911.

UNITED STATES PATENT OFFICE.

ERNEST N. HILL, OF ANDERSON, INDIANA, ASSIGNOR T0 HILL PUMP COMPANY, OF

ANDERSON, INDIANA, A CORPORATION.

ROTARY PUMP.

Specification of Letters Patent.

Patented Sept. 2, 1919.

To all whom it may concern:

Be it known that I, ERNEST N. HILL, a citizen of the United States, and a resident of Anderson, county of Madison, and State of Indiana, have invented a certain new and useful Rotary Pump; and Ido hereby declare that the following is a full, clear, and exact description thereof; reference be ng had to the accompanying drawings, in which like letters refer to like parts.

The object of this invention is to improve the construction and operation of rotary pumps 0f the type shown in my former Patent'No. 999,787 patented August 8, 1911. The invention relates to the class of rotary pumps known as impeller pumps, and the object of the invention is to strengthen the structure'by providing the deflector or diffusion vane with a centrally located bearing for the shaft. Heretofore said vanes have been wholly annular without any central structure or hearing or mountin My improved construction makes the dif usion vane strong and prevents the shaft from etting out of center and maintains it straight and in line, as said rotary pump is used in wells having long casings and, therefore, havmg long shafts.

Another object of the invention is to make the bearing for the shaft in the vane renewable.

The full nature of the invention will be understood from the accompanying drawings and the following description and claims:

Figure 1 is a artial elevation and a partial vertical section of such a pump structure, parts being omitted and parts being broken away. Fig. 2 is an enlarged section on the line 2-2 of Fig. 1. Fig. 3 is an enlarged vertical section on the line 3-3 of Fig. 2.

There is shown in the drawings herein a casing 10 made of sections so that said casing may be long and adapted to extend therein into the well for a considerable distance according to the demands of the well from which water is to be pumped by this apparatus. On the upper end of the casing there is a ring plate 11 for supporting the casing in the well. The lower end of the upper section of the casing is internally threaded and both ends of the remaining sections are internally threaded. The threads are preferred left hand threads.

A shaft 12 extends down centrally through the casing and is driven by suitable means applied to the upper end and above the ground but which means is not shown herein. The purpose of the shaft is to actuate or rotate impeller wheels 13 of suitable construction, which wheels are provided with plates not shown herein which lift or impel upwardly the water in the casing. There is a series of impeller wheels on said shaft extending down to the lower end of the casing and into the region of the water as it stands in the well and said wheels are located at such distance apart so as to enable one wheel to force the water up to the wheel above it and thus acting on the water in succession and simultaneously they elevate the water.

The water as it moves upwardly from A the impeller wheel has a whirling motion caused by the movement of the wheel. In order to enable the next impeller wheel above to have a lifting effect, therefore, on the column of water moving upward, deflector members are placed inthe casing just below the impeller wheels. A deflector has a cylindrical wall 15 externally threaded so as to screw into and unite the ends of the joints or sections of the casing 10 as shown. The location of the deflectors, therefore, is determined by the joints of the casing, there being one deflector at each joint preferably and there is an impeller wheel secured on the shaft 12 immediately above each deflector member.

The deflector member has vertical vanes 16 extending from the inner periphery of the cylindrical wall 15, and preferably curved to the hub 17 of the deflector member which surrounds the shaft and in which the shaft has hearing. The vanes cause the whirling uipwardly moving water that has come from the impeller wheel below to stop whirling and move straight vertically upward to the impeller wheel above and thus enable the said upper impeller wheel to act on the column of water, as the vane in the impeller wheel is spiral for lifting the water.

Heretofore, the deflector members have been located immediately above the impeller wheels so as to stop the whirling movement of the water immediately after it leaves an impeller wheel. This, however, is obj ectionable as in such position the deflector tends to check the upward movement of the water immediately after it leaves the impeller wheel. With the improved construction there is no obstruction in the casing to the upward movement-of the water for a considerable distance above each impeller wheel; Consequently the water coming from an tard or obstruct the upward movement of the water very much, at least as compared with the former arrangement. This feature of the invention greatly increases theefficiency of the pump.

The hub 17 has a removable and renew able bearing 18 located it, as shown in Fig. 8. It has a flange on its upper end that rests on a shoulder in the hub 17 for supporting it in place. With a long casing and shaft 12 the central position and accu- Irate alinement of said shaft can be maintained satisfactorily at all times by the bearing of saidshaft in the hubs of the de flectors located at intervals in'the casing.

The invention claimed is: 1. A rotary impeller .pump' includinga Copies of this patent may be obtained for casing formed of sections with their adja' cent ends internally threaded, a shaft in said casing, externally threaded deflector member's inclosed by said casing andunit l ing the adjacent ends of the sections of the "casing, each deflector comprising an outer cylindrical wall, a central hub member, vertical vanes connecting the wall and hub and tangential to the hub, said vanes being curved from end to end, and adapted to direct vertically the colmun of water coming to them, and impellers, secured on said shaft. 12 A rotary impeller .pump including a casing formed of sections with their adjafcent ends internally threaded, a shaft in said casing, deflector members externally threaded'and uniting the ends of the adjacent sections and each havinga central hub surrounding it for furnishing bearings for the shaft and vanes connecting the hub and cylindrical'wall of the deflector, the upper 7 end of each hub having a depressionfOrming a shoulder, and a separate removable bearing in the hub of eachdeflector and surrounding the shaft, the upper end of the removable bearing having a radial flange for engagement with said shoulder for holding the removable bearing against downward movement;

' lnwltness whereof I ha my signature.

five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

ve hereunto aflixed I ERNEST N. HILL; 

